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Photoelectron angular distributions from resonant two-photon ionisation of adiabatically aligned naphthalene and aniline molecules

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Photoelectron angular distributions from resonant two-photon ionisation of adiabatically aligned naphthalene and aniline molecules. / Arlt, Jacqueline; Singh, Dhirendra P.; Thompson, James O.F.; Chatterley, Adam S.; Hockett, Paul; Stapelfeldt, Henrik; Reid, Katharine L.

I: Molecular Physics, Bind 119, Nr. 1-2, e1836411, 2021.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

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Arlt, Jacqueline ; Singh, Dhirendra P. ; Thompson, James O.F. ; Chatterley, Adam S. ; Hockett, Paul ; Stapelfeldt, Henrik ; Reid, Katharine L. / Photoelectron angular distributions from resonant two-photon ionisation of adiabatically aligned naphthalene and aniline molecules. I: Molecular Physics. 2021 ; Bind 119, Nr. 1-2.

Bibtex

@article{e2fbb355497441e096d81f06f190fe77,
title = "Photoelectron angular distributions from resonant two-photon ionisation of adiabatically aligned naphthalene and aniline molecules",
abstract = "Photoelectron images have been measured following the ionisation of aligned distributions of gas phase naphthalene and aniline molecules. Alignment in the adiabatic regime was achieved by interaction with a 100 ps infrared laser pulse, with ionisation achieved in a two-photon resonant scheme using a low intensity UV pulse of ∼6 ps duration. The resulting images are found to exhibit anisotropy that increases when the alignment pulse is present, with the aniline PADs peaking along the polarisation vector of the ionising light and the naphthalene PADs developing a characteristic four-lobed structure. Photoelectron angular distributions (PADs) that result from the ionisation of unaligned and fully aligned distributions of molecules are calculated using the ePolyScat ab initio suite and converted into two-dimensional photoelectron images. In the case of naphthalene excellent agreement is observed between experiment and the simulation for the fully aligned distribution, showing that the alignment step allows us to probe the molecular frame, but in the case of aniline it is clear that additional processes occur following the one-photon resonant step.",
keywords = "images, multiphoton ionisation, Photoelectron, strong-field alignment",
author = "Jacqueline Arlt and Singh, {Dhirendra P.} and Thompson, {James O.F.} and Chatterley, {Adam S.} and Paul Hockett and Henrik Stapelfeldt and Reid, {Katharine L.}",
year = "2021",
doi = "10.1080/00268976.2020.1836411",
language = "English",
volume = "119",
journal = "Molecular Physics",
issn = "0026-8976",
publisher = "Taylor & Francis ",
number = "1-2",

}

RIS

TY - JOUR

T1 - Photoelectron angular distributions from resonant two-photon ionisation of adiabatically aligned naphthalene and aniline molecules

AU - Arlt, Jacqueline

AU - Singh, Dhirendra P.

AU - Thompson, James O.F.

AU - Chatterley, Adam S.

AU - Hockett, Paul

AU - Stapelfeldt, Henrik

AU - Reid, Katharine L.

PY - 2021

Y1 - 2021

N2 - Photoelectron images have been measured following the ionisation of aligned distributions of gas phase naphthalene and aniline molecules. Alignment in the adiabatic regime was achieved by interaction with a 100 ps infrared laser pulse, with ionisation achieved in a two-photon resonant scheme using a low intensity UV pulse of ∼6 ps duration. The resulting images are found to exhibit anisotropy that increases when the alignment pulse is present, with the aniline PADs peaking along the polarisation vector of the ionising light and the naphthalene PADs developing a characteristic four-lobed structure. Photoelectron angular distributions (PADs) that result from the ionisation of unaligned and fully aligned distributions of molecules are calculated using the ePolyScat ab initio suite and converted into two-dimensional photoelectron images. In the case of naphthalene excellent agreement is observed between experiment and the simulation for the fully aligned distribution, showing that the alignment step allows us to probe the molecular frame, but in the case of aniline it is clear that additional processes occur following the one-photon resonant step.

AB - Photoelectron images have been measured following the ionisation of aligned distributions of gas phase naphthalene and aniline molecules. Alignment in the adiabatic regime was achieved by interaction with a 100 ps infrared laser pulse, with ionisation achieved in a two-photon resonant scheme using a low intensity UV pulse of ∼6 ps duration. The resulting images are found to exhibit anisotropy that increases when the alignment pulse is present, with the aniline PADs peaking along the polarisation vector of the ionising light and the naphthalene PADs developing a characteristic four-lobed structure. Photoelectron angular distributions (PADs) that result from the ionisation of unaligned and fully aligned distributions of molecules are calculated using the ePolyScat ab initio suite and converted into two-dimensional photoelectron images. In the case of naphthalene excellent agreement is observed between experiment and the simulation for the fully aligned distribution, showing that the alignment step allows us to probe the molecular frame, but in the case of aniline it is clear that additional processes occur following the one-photon resonant step.

KW - images

KW - multiphoton ionisation

KW - Photoelectron

KW - strong-field alignment

UR - http://www.scopus.com/inward/record.url?scp=85093978284&partnerID=8YFLogxK

U2 - 10.1080/00268976.2020.1836411

DO - 10.1080/00268976.2020.1836411

M3 - Journal article

AN - SCOPUS:85093978284

VL - 119

JO - Molecular Physics

JF - Molecular Physics

SN - 0026-8976

IS - 1-2

M1 - e1836411

ER -